Class InMemoryResourceResolverRegistry

java.lang.Object

com.svenruppert.jsentinel.policy.impl.InMemoryResourceResolverRegistry

All Implemented Interfaces:

ResourceResolverRegistry

@ExperimentalJSentinelApi
public final class InMemoryResourceResolverRegistry
extends Object
implements ResourceResolverRegistry

Thread-safe in-memory ResourceResolverRegistry backed by a ConcurrentHashMap. Resolvers are keyed by their ResourceResolver.resourceType(); re-registering replaces the previous entry.

This is the default implementation returned by JSentinelServiceResolver.resourceResolverRegistry() when no SPI override is registered. Applications register their domain resolvers into the cached instance at startup.

Constructor Summary

Constructors

Constructor	Description
InMemoryResourceResolverRegistry()	Creates an empty registry.

Method Summary

Modifier and Type	Method	Description
Optional<ResourceResolver<?>>	find(String resourceType)	Looks up a resolver by resource type.
void	register(ResourceResolver<?> resolver)	Registers a resolver.
Optional<Map<String,Object>>	resolveAttributes(ResourceRef ref)	Resolves the given reference and returns the resolver's attribute map.

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

InMemoryResourceResolverRegistry

public InMemoryResourceResolverRegistry()

Creates an empty registry.

Method Details

register

public void register(ResourceResolver<?> resolver)

Description copied from interface: ResourceResolverRegistry

Registers a resolver. Duplicate ResourceResolver.resourceType() registrations replace the previous entry.

Specified by:

register in interface ResourceResolverRegistry

Parameters:

resolver - non-null resolver

find

public Optional<ResourceResolver<?>> find(String resourceType)

Description copied from interface: ResourceResolverRegistry

Looks up a resolver by resource type.

Specified by:

find in interface ResourceResolverRegistry

Parameters:

resourceType - non-blank resource type

Returns:

resolver, or empty if none is registered

resolveAttributes

public Optional<Map<String,Object>> resolveAttributes(ResourceRef ref)

Description copied from interface: ResourceResolverRegistry

Resolves the given reference and returns the resolver's attribute map. Returns empty when no resolver is registered for the resource type, or when the resolver itself returns empty for the id. Never throws on unknown types or ids — policies treat the absence of attributes as a graceful deny.

Specified by:

resolveAttributes in interface ResourceResolverRegistry

Parameters:

ref - non-null reference

Returns:

attribute map, or empty